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文章编号： 1672-6987（2022）06-0040-06； DOI： 10.16351/j.1672-6987.2022.06.006
王铁林, 冯柏成*， 张鹤型(青岛科技大学 化工学院，山东 青岛 266042)
摘要： 采用等体积浸渍法合成复合催化剂WO3/ZrO2-SiO2，并通过XRD、NH3-TPD、XPS等表征确定其结构和性能。在固定床反应器上通过仲醇脱水制备α-烯烃对催化剂活性进行评价。结果表明：在WO3负载量(质量分数)为15%，n(Zr)/n(Si)为1/1、焙烧温度600 ℃、焙烧时间6 h时所制备的催化剂最具催化活性，在固定床反应器中进行仲醇脱水实验，当反应温度为350 ℃、空速03 h-1时，α-烯烃的有效选择性可达到80%以上。
关键词： 等体积浸渍法； WO3/ZrO2-SiO2； 仲醇脱水； α-烯烃
中图分类号： O 643.32文献标志码： A
引用格式： 王铁林, 冯柏成， 张鹤型. 复合催化剂WO3/ZrO2-SiO2的制备及其在仲醇脱水制备α-烯烃中的应用［J］. 青岛科技大学学报(自然科学版), 2022, 43(6): 40-45.
WANG Tielin, FENG Baicheng, ZHANG Hexing. Preparation of composite catalyst WO3/ZrO2-SiO2 and its application in the dehydration of secondary alcohols to α-olefins［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2022, 43(6): 40-45.
Preparation of Composite Catalyst WO3/ZrO2-SiO2 and
Its Application in the Dehydration of Secondary Alcohols to α-Olefins
WANG Tielin, FENG Baicheng, ZHANG Hexing
(College of Chemical Engineering,Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: In this paper, the composite catalyst WO3/ZrO2-SiO2 was synthesized by an equal volume impregnation method, and its structure and performance were determined by XRD, NH3-TPD, XPS and other characterizations. The catalyst activity was evaluated by preparing α-olefins by dehydration of secondary alcohols on a fixed bed reactor. The results show that the catalyst prepared when the loading of WO3 is 15%, the ratio of n(Zr)/n(Si) is 1/1, the calcination temperature is 600 ℃, and the calcination time is 6 h is the most catalytically active. The secondary alcohol dehydration experiment is carried out in a fixed bed reactor. When the temperature is 350 ℃ and the space velocity is 03 h-1, the effective selectivity of α-olefin can reach more than 80%.
Key words: equal volume impregnation method; WO3/ZrO2-SiO2; secondary alcohol dehydration; α-olefin
收稿日期： 2021-12-16
基金项目： 山东省自然科学基金项目 (ZR2020MB132).
作者简介： 王铁林（1993—），男，硕士研究生.*通信联系人.
